How to update (date) in PHP MySQL?

Question

Hello so basically I want to update a date in MySQL but to make the thing done in php form like:

<?php
  $sql = "UPDATE users 
            set expire_date=CURRENT_DATE + INTERVAL 30 DAY 
          WHERE email='" . $_SESSION['user_email'] . "'";
?>

Sorry If I described my question weirdly but Its important for my project, any help appreciated!

Answer 1

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
  die("Connection failed: " . $conn->connect_error);
}

$sql = " $sql = "UPDATE users 
            set expire_date=DATE_ADD(`date` , INTERVAL 30 DAY)
          WHERE email='" . $_SESSION['user_email'] . "'";

if ($conn->query($sql) === TRUE) {
  echo "Record updated successfully";
} else {
  echo "Error updating record: " . $conn->error;
}

$conn->close();
?>